Base: 4 1/2" or 114 mm. Height: 4 5/8" or 117 mm. Ideal Weight: 140+ lbs or 63+ kgs. Timmy Patterson template. Performance fin with power and drive for the medium size surfer. Larger base and fuller tip makes this fin good for bigger powerful surfers. A popular front set for quads when paired with the LBXM 3.8.